An experimental study on aerodynamic improvements for edge girder bridges

Sakai, Yoshinori; Ogawa, Kensuke; Shimodoi, Hideki; Saitoh, Tohru

doi:10.1016/0167-6105(93)90040-u

Cited by 15 publications

(3 citation statements)

References 2 publications

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“…Although these attachments are nonstructural members, they change the wind flow near the bridge section. Fairings, flaps, edge plates, side plates, baffle plates, and gratings are used as additional attachments [7]. Among these attachments, the fairing is widely used, since it is easy to handle.…”

Section: Previous Researches and The Proposed New-mentioning

confidence: 99%

Aerodynamic Characteristics Evaluation of a Cable‐Stayed Bridge Section with a New‐Type Hybrid Fairing

Moon

2021

Shock and Vibration

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In this study, new-type hybrid faring is suggested to improve the aerodynamic performance of the long-span cable-stayed bridge. The proposed fairing is developed by applying the concept of the multibox section to the normal faring. The proposed faring has void regions inside the faring so that wind passes through the gaps in the faring. As a result, the wind flow is changed and the forces to the bridge section are reduced. The efficiency of the proposed faring was verified by a series of wind tunnel test. From the test result, it can be found that aerodynamic performances, such as drag force and flutter resistance, are enhanced.

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Section: Previous Researches and The Proposed New-mentioning

confidence: 99%

Aerodynamic Characteristics Evaluation of a Cable‐Stayed Bridge Section with a New‐Type Hybrid Fairing

Moon

2021

Shock and Vibration

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“…Box slope angle (°) Figure 11: C x vs. box slope angle for various AOA. 6 Advances in Civil Engineering minimize the vertical forces. From the test results, it can be found that C z is increased with the increase of the value of AOA.…”

Section: Variation Of C Z Coefficients With Aoamentioning

confidence: 99%

“…To improve aerodynamic stability of the bridge section, several studies have been conducted by a number of researchers. For example, the effect of various attachments such as fairing, flap, edge plate, side plate, and baffle plate has been investigated to improve the aerodynamic stability of the edge girder section [5][6][7][8]. However, all these methods mentioned above have to install additional attachments onto a bridge.…”

Section: Introductionmentioning

confidence: 99%

Static Wind Load Evaluation under Steady‐State Wind Flow for 2‐Edge Sloped Box Girder by Using Wind Tunnel Test

Moon

2019

Advances in Civil Engineering

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e two-edge box girder has been widely used as a stiffened girder in cable-stayed bridges. However, such girders have weakness in aerodynamic stability. To improve its aerodynamic stability, some previous researchers have given slope to the edge box instead of installing additional attachments to aerodynamically stabilize the bridge. For wind load design, an angle of attack (AOA) has to be considered. However, the effect of AOA has not been studied for sloped box girder yet. In the present study, the effect of AOA on the static wind load coefficient was investigated for 2-edge sloped box girder. A series of wind tunnel tests was performed by varying the box slope angle from 0°to 17°where AOA was set from − 10°to 10°. Results showed that the lateral wind force is considerably reduced with the increase of the box slope angle except the case with the physical angle of 8°-11°. For practical AOA range, the box slope should be larger than 15°to minimize the aerodynamic static lateral force on the girder.

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Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

Katsuchi

Yamada

Nishio

et al. 2015

Front. Struct. Civ. Eng.

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An experimental study on aerodynamic improvements for edge girder bridges

Cited by 15 publications

References 2 publications

Aerodynamic Characteristics Evaluation of a Cable‐Stayed Bridge Section with a New‐Type Hybrid Fairing

Aerodynamic Characteristics Evaluation of a Cable‐Stayed Bridge Section with a New‐Type Hybrid Fairing

Static Wind Load Evaluation under Steady‐State Wind Flow for 2‐Edge Sloped Box Girder by Using Wind Tunnel Test

Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

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